move to maven

Change-Id: Idf34adc6a010d183648a29c95c7ba3211dfe4480
Add dependency for json. Add properties for sonar.

Change-Id: Ie864f3977e80a960983cb9f97534035f9bc06773
Add xsd files of identity v2.0

Change-Id: Ic1bb7990342758ab69edb49f33b387255ddab369
misc changes.

Change-Id: I0925799e7f31db5db1f3f0222e42eb3bae7e1486